diff --git a/randr/randrstr.h b/randr/randrstr.h
index e7e30a618..588aa0db7 100644
--- a/randr/randrstr.h
+++ b/randr/randrstr.h
@@ -560,12 +560,6 @@ extern _X_EXPORT RRCrtcPtr RRCrtcCreate(ScreenPtr pScreen, void *devPrivate);
 extern _X_EXPORT void
  RRCrtcSetRotations(RRCrtcPtr crtc, Rotation rotations);
 
-/*
- * Set whether transforms are allowed on a CRTC
- */
-extern _X_EXPORT void
- RRCrtcSetTransformSupport(RRCrtcPtr crtc, Bool transforms);
-
 /*
  * Notify the extension that the Crtc has been reconfigured,
  * the driver calls this whenever it has updated the mode
diff --git a/randr/randrstr_priv.h b/randr/randrstr_priv.h
index 389e1faee..4754ea521 100644
--- a/randr/randrstr_priv.h
+++ b/randr/randrstr_priv.h
@@ -176,4 +176,12 @@ CARD16 RRVerticalRefresh(xRRModeInfo * mode);
  */
 Bool RRCrtcExists(ScreenPtr pScreen, RRCrtcPtr findCrtc);
 
+/*
+ * Set whether transforms are allowed on a CRTC
+ *
+ * @param crtc the CRTC to set the flag on
+ * @param transforms TRUE if transforms are allowed
+ */
+void RRCrtcSetTransformSupport(RRCrtcPtr crtc, Bool transforms);
+
 #endif /* _XSERVER_RANDRSTR_PRIV_H_ */